August heine



(No Model.)

' 2 Sheets-Sheet 2. A. HBINE. GENTRIPUGAL PLOUR BOLT. No. 299,784. Patented'J'une 3, 1884.

N. PETERS. Phulu-Lilhogmpher. Washmgmn. |104 A 'UNirEn STATES PATENT Fries.

AUGUST unimi, on SILVER cnnnx., NEW Yonx'.

CENTRIFUGL FLOUR-BOLT.

SPECIFICATION forming part of Letters Patent No. 299,784, dated June 3, 1884.

Application filed December 10, 1883.

State of New York, have invented a new and useful Improvement in Centrifugal Flour.- Bolts, of which the following is a specification.

rlhis invention relates to certain improvements in that class of flour-bolts which are provided with a rotating bolting-cylinder and beaters which rotate in the cylinder, and whereby the material is `brought in contact with all parts of the bolting-surface.

The object of this invention is-the improvement of the operation of this class of machines; and my invention consists, to that end, in the improvements which will be hereinafter fully described and specifically claimed.

In the accompanying drawings,consisting of two sheets, Figure 1 is a longitudinal sectional elevation of a machine provided'with my iniprovements. Fig. 2 is a fragmentary vertical cross-section thereof. Fig. 3 is a side elevation, on an enlarged scale, ofthe lower conveyerbearing. Fig. 4. is averticalsection on line a; a: of Fig. 3. Fig. 5 isa horizontal section on line y y of Fig. 3. Fig. 6 'is a cross-section, on an enlarged scale, of the clothing applied to thebolting-cylinder. Fig. 7 is an enlarged cross-section of thestretching device whereby the longitudinal edges of the clothing are connected. Fig. Sis a similar view of the auxiliary stretching device applied to the clothing. Fig. 9 is a fragmentary plan view of the last-named stretching device.

Like letters of reference denote like parts in the several figures.

A represents the frame of the machine, and A the inclosing-casing secured thereto.

B represents the bolting-cylinder, arranged within the casingA, and C represents'the rotating beatersarranged within the cylinder B.

D represents a preliminary separator arranged within the casing A lengthwise above the bolting-cylinder B, and consisting` of a series of spiral brushes, d, mounted upon a drum,

d, and rotating ina perforated trough, d2.

e represents the feed-spout, through which the material to be bolted is introduced into the preliminary separator D, and c is the discharge-spout through which the coarse material which has not passed through the perforations of the trough d2 is discharged from the (No model.)

preliminary separator. The drum d and the brushes d secured thereto are made tapering from the feed end to the discharge end of the preliminary separator, and the perforated trough d2 is tapered correspondingly, so that the perforated surface of the trough gradually decreases in the same measure as the bulk of the material decreases by the removal of the fine material which` has. been bolted through the perforations of the trough. The trough d2 is so clothed that the ne material which is required to be bolted in the cylinder B passes through the perforations of the trough, while the coarse impurities-dough balls, nails, stones, Src-are retained in the trough and finally discharged through the spout e. The mesh of the trough is preferably made progressively finer from its feed end toward its discharge end, in order to expedite the separation at the feed end and prevent coarse particles from being brushed through the trough near the discharge end. The drum d is made lengthwise adjustable with its shaft by means of setscrews or adjustable collars, whereby the brushes can be adjusted. to and from the surface of the perforated trough, as may be g represents a shaft arranged axially in the bolting-cylinder B, and G represents the spiders or arms whereby the 4beaters C are secured to the shaft g in a well-known manner. Thebeaters C are arranged lengthwise in the cylinder B, and extend from the head thereof` toward a point at a greater or less distance in front 4of the tail end ofthe clyinder, so as to leave at the tail end of the cyliner a bolting chamber or space, H, which is not provided with any beaters, and invwhich the bolting of the material is effected merely by the operation of sifting.

It represents the central discharge-opening, through which the` tailings are delivered into the discharge-spout I.

J represents an annular head or disk surrounding the shaft g in front of the opening h,

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and extending nearly to the bolting-surface, so as to leave an annular opening, j, through which the tailings pass from the bolting-surface into the space behind the disk J. The latter is provided onits outcror rear side with radial ribs j in a well-known manner, whereby the tailings are lifted and delivered into the discharge-opening h. The disk J prevents the light floating material which moves along the axis of the bolting-cylinder from passing directly out of the bolting-cylinder through the central discharge-opening, 71., and compels this light material to pass toward the boltingsurface before it can escape from the boltingcylinder. This light material contains yaluable partieles which descend by gravity in the chamber H, and are bolted out on the tail portion of the bolting-cylinder, which is not provided with anybeaters, and the specky particles or light impurities contained in this light fioating material are therefore not forced through the bolting-surface, but are tailed off. Vhile the head J is very effective in effecting the separation of the valuable particles contained in the light material, it maybe reduced in size or omitted, when the same result will be attained, but in a less degree.

K K represent two screw-conveyors arranged lengthwise underneath the bolting-cylinder B, and provided with draw-off slides, whereby different grades of the bolted material can be co mingled or separately discharged, as may be desired.

Z represents apinion mounted on the tail end of the shaft g, and gearing into a wheel, L, which is secured to a counter-shaft, Z.

m is a sprocket-wheel secured to the counter-shaft Z', and connected by a chain belt, m, with a similar wheel, H, mounted on the shaft m2 of the lower conveyer, K. The end of the shaft m adjacent to the chain belt m is supported in a vcrtically-adjustable box or bearing, N, which is fitted in dovetail guides 11, formed on the outer or face side of a standard, O,which carries at its upper end abearing,0, in which the shaft of the upper conveyor, K, is supported. rlhe bearing N is adjusted by set-screws p, which tend to hold the bearing N downwardly, and whereby the chain belt mis readily tightened.

Q represents the clothing or covering of bolting-cloth applied to the outer sides of the ribs or skeleton frame of the bolting-cylinder B.

q represents the strips of ticking or other strong material sewed to the longitudinal edges of the bolting-cloth Q, and provided with lacing` hooks or eyelets q', around or through which is passed the lacing-cord Q2, whereby the edges of the bolting-cloth are drawn together and the clothing is stretched on the cylinder.

R represents a longitudinal strip of ticking or other strong cloth sewed between two adjoining strips of bolting-cloth, or upon the bolting cloth itself, and provided with lacing hooks or eyelets r, which arc connected by a lacing-cord, 1". rlhe strip of ticking R 1s preferably arranged diametrically opposite the point at which the two longitudinal edges of 7o lacing-cord r is lloosened, so that in tightening the cord q2 the strip of ticking R is fully stretched. If the clothing should afterward become loose or baggy, and the strips of tickingqqhavebeen drawn so closely together that the cloth cannot be further stretched by tightening the cord q2, the auxiliary stretching device is resorted to, and the cloth is further stretched by tightening the cord r. The auxiliary stretching device may also be resorted to when the cloth cannot be uniformly stretched by the device which is applied to the longitudinal edges of the clothing.

I claim as my inventionl. rlhe combination, with a bolting cylinder, of a preliminary separator composed of a tapering perforated trough and a tapering brush made lengthwise adjustable in said trough, substantially as described.

2. The combination, with a bolting-cylinder, of a preliminary separator composed of a tapering brush and a tapering perforated trough decreasing in area toward its discharge end, substantially as described.

3. The combination, with a bolting-cylinder, of rotating beaters arranged inthe head portion of the cylinder only, leaving a sifting chamber or space near the tail end of the cylinder, and a head or deflectorsurrounding the axis of the bolting-cylinder at its tailend, whereby the fioating material is compelled to pass toward the bolting-surface in said sifting-chamber before escaping from the boltingcylinder, substantially as described.

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4. The combination, with a bolting-eylinder, of rot-ating beaters arranged in the head portion of the cylinder only, leaving a sifting chamber or space near the tail end of the cylinder, in which the valuable particles contained inthe floating material are separated from the light refuse by gravity and sifted out, and a central discharge through which the tailings escape from the bolting-cylinder, substantially as described.

5. The combination, with a bolting-cylinder, of rotating beaters arranged in the head portion of the cylinder only, leaving a sifting chamber, H, near the tail end of the cylinder, a central discharge, h, for the tailings, and a head or disk, J, whereby the floating material is compelled to pass toward the bolting-surface before it passes through the discharge-opening h, substantially as described.

6. lllhe combination, with the conveyers K K', chain belt m', and wheel M, of the standards O, provided with fixed bearings O for one of the conveyor-shafts, vertical guides n, set-screwp, and the adjustable bearings N for the other conveyershaft, substantially as described.

7. A clothing for bolting-reels,composed ofv a bolting-cloth, Q, having longitudinal edge strips, a stretching device connecting said strips, and an auxiliary intermediate stretching device arranged lengthwise on the clothing, substantially as set forth.

8. A clothing for bolting-reels,composed of abolting-eloth, Q, longitudinal edge strips, g q, of strong material,a lacing connecting said strips, an intermediate longitudinal strip, R, of strong material, and a lacing applied toi said`strip, substantially as set forth.

AUG. HEINE.

In presence of- EDWARD WILHELM,

F. L. BRowNE. 

